main_linux.c

#include "libasm.h"

extern int errno;

void	strlen_test() {
	printf("--------------ft_strlen---------------\n\n");
	const char *tests[] = {
        "",
        "hello",
        "42",
        "assembly",
        "this is a longer string",
        NULL
    };
	for (int i = 0; tests[i]; i++) {
        size_t real = strlen(tests[i]);
        size_t mine = ft_strlen(tests[i]);
        printf("String: \"%s\"\n", tests[i]);
        printf("strlen   	= %zu\n", real);
        printf("ft_strlen 	= %zu\n\n", mine);
    }
}

void	strcpy_test() {
	printf("--------------ft_strcpy---------------\n\n");
	char	dst[100];
	char	dst1[100];
	char	*src = "hello";
	ft_strcpy(dst, src);
	strcpy(dst1, src);
	printf("ft_strcpy: \t \"%s\" \nstrcpy: \t \"%s\"\n\n", dst, dst1);

	src = "hello there tester mcTestyness";
	ft_strcpy(dst, src);
	strcpy(dst1, src);
	printf("ft_strcpy: \t \"%s\" \nstrcpy: \t \"%s\"\n\n", dst, dst1);

	src = "";
	ft_strcpy(dst, src);
	strcpy(dst1, src);
	printf("ft_strcpy: \t \"%s\" \nstrcpy: \t \"%s\"\n\n", dst, dst1);
}

void strcmp_test() {
	printf("--------------ft_strcmp---------------\n\n");
	char	*str1 = "am i the same?";
	char	*str2 = "am i similar?";
	char	*str3 = "am i the same?";
	char	*str4 = "";
	printf("ft_strcmp: \t %d | strcmp: \t %d\n\n", ft_strcmp(str1, str2), strcmp(str1, str2));
	printf("ft_strcmp: \t %d | strcmp: \t %d\n\n", ft_strcmp(str2, str3), strcmp(str2, str3));
	printf("ft_strcmp: \t %d | strcmp: \t %d\n\n", ft_strcmp(str3, str1), strcmp(str3, str1));
	printf("ft_strcmp: \t %d | strcmp: \t %d\n\n", ft_strcmp(str3, str4), strcmp(str3, str4));
}

void write_test() {
	printf("--------------ft_write---------------\n\n");
	ft_write(1, "Hello string to test write function\n", strlen("Hello string to test write function\n"));
	ft_write(1, "another test\n\n", strlen("another test\n\n"));
	ft_write(1, "", strlen(""));
	ft_write(1, NULL, 0);

	int ret = ft_write(-1, "oops\n", strlen("oops\n"));
	int ret1 = write(-1, "og write comparison\n", strlen("og write comparison\n"));
	perror("ft_write");
	printf("return ft_write() = %d\n\n", ret);
	perror("write");
	printf("return write() = %d\n\n", ret1);

	int open_fd = open("test.txt", O_CREAT | O_RDWR | O_TRUNC, 0644);
	ft_write(open_fd, "open fd test\n", strlen("open fd test\n"));
}

void strdup_test() {
	printf("--------------ft_strdup---------------\n\n");
	char	*s = "hello assembly";
	char	*dup = ft_strdup(s);
	if (!dup) {
		printf("ft_strdup failed\n");
		return ;
	}
	printf("original: %s\n", s);
	printf("duplicate = %s\n\n", dup);
	free(dup);

	s = "";
	dup = ft_strdup(s);
	if (!dup) {
		printf("ft_strdup failed\n");
		return ;
	}
	printf("original: %s\n", s);
	printf("duplicate = %s\n\n", dup);
	free(dup);
}

void read_test() {
	printf("--------------ft_read---------------\n\n");
	printf("Reading from stdin: \n");
	char	buf[100];
	int ret = ft_read(0, buf, 50);
	if (ret > 0) {
		buf[ret] = '\0'; }
	else {
        buf[0] = '\0'; }
	printf("ft_read returned = %d\n", ret);
	printf("Read content: %s\n\n", buf);
	printf("Reading with invalid FD: \n");
	int err = ft_read(-1, buf, 5);
	perror("ft_read");
	printf("return = %d\n\n", err);

	printf("Reading from existing files: \n");
	char	buffer[100];
	char	buffer1[100];
	int open_fd = open("test1.txt", O_RDONLY, 0644);
	int open_fd2 = open("test2.txt", O_RDONLY, 0644);
	int result = ft_read(open_fd, buffer, 50);
	int result1 = read(open_fd2, buffer1, 50);
	buffer[result] = '\0';
	buffer1[result1] = '\0';
	printf("return ft_read = %d | %s\n", result, buffer);
	printf("return read = %d | %s\n", result1, buffer1);

}

int 	main(void) {
	strlen_test();
	strcpy_test();
	strcmp_test();
	write_test();
	strdup_test();
	read_test();
	return 0;
}